Locking-bolt for ships  berths



(Model.)

. G. A. PARKS.

LOCKING BOLT FOR SHIPS BERTHS.

N0.\255;190. Patented Mar. 21g1882.

neas, Phamumgmpmn wnmngm. D, c.

UNITED STATES PATENT OFFICE.

LOCKING-BOLT FOR SHIPS BERTHS.

SPECIFICATION forming para of Letters Application filed July G, 1881.

To all whom it may concern Be it known that I, GEORGE A. PARKS, a citizen of the United States, residing at Revere, in the county of Suli'olk and State of Massachusetts, have invented certain new and useful Improveinentsin Locking Devices t'orShips Berths; and Ido hereby declare that the saine are fully described in the following specification and illustrated in the accompanyingdrawings.

rIhis invention relates to improvements in locking devices for self-leveling ship-berths, for the purpose of securing the berth firmly in position when not occupied. The invention, although particularly designed for locking ships berths, is also equally useful as a lock-` ing device for any other desired purpose.

The invention is carried out as follows, ret"- erence being had to the accompanying drawings, on which Figure l represents a plan view of the device shown locked. Fig. 2 represents a sectional side elevation on the line A B, shown in Fig. l. Fig. 3 represents a crosssection on the line O D, shown in Fig. 1; and Fig. 4 represents a cross-section on the line E F, shown in Fig. 2.

Similarlettcrs referto similar parts wherever they occur on the different parts ot' the drawlugs.

A represents a ships berth or other object that is to be temporarilyT locked, and b represents a bulk-head or division-wall between a pair of ships cabins.

To the inside of the berth a is secured the lock c, having springbolt d, spring e, tuinblers ff, key-hole g, and key l1., as usual. In combiing-bar i in its forward-and-back motion. The

outer end of the locking-bari projects through a perforation in the 'end a ot' the berth, as shown, as well as through a suitable metallic guide-plate, k, fastened to the inner end of the berth. The spring-bolt d, after being raised by its key h out of either of the notches or i" on the locking-bar i, will allow of the sliding of the locking-bar t' forward or back to a locked or unlocked position, as maybe desired,

Patent No. 255,190, dated March l21, 1882.

(Model.)

l and ineither of such positions the locking-bar l will be retained by the spring-bolt el, resting in either ofthe notches t" or i", as shown. i

The dotted lines in Figs. l and 2 represent is, the berth a, is then liberated from the bnlkhead or division-wall b. To the latter is secured the striker-plate l, having slotted opening l', in which the perforated striker mis ad-v justable np and down, and when so adjusted to correspond with the height of the lockingbar i said striker m is firmly secured in position by means of the set-scews n n', screwed through-the upper andlowerendsof the strikerplate Z, as shown in lFigs. 2 and 3. Such adjustment of the striker m is important to compensate for variations in a vertical direction of the ships berth a.

The full lines in Figs. l and 2 show the end ot' the loc-kingbar t' as locked and resting within the striker nl. To unlock said bar 'i it is only necessary to raise the spring-bolt d, by means ofthe key h, out of the notch i, when the locking-bar fl' is released from the lock c, and Inay be moved toward the left until the notch z" comes opposite to the springbolt d., when the latter is automatically forced by its spring e into the notch i', thus keeping the locking-bar i in an unlocked position from its striker until the bolt d is again raised by the key, allowing the bar i to be iroved toward the right till its outer end enters the striker m at the same Itime as the spring-bolt d descends into the notch ll on the locking-bar i.

In ships berths I use one of these locking devices in each end ot' the berth; but for other purposes one single lock and locking-bar may be sufficient.

'What I wish to secure by Letters Patent, and claim, is

In combina-tion, the lock c, its spring-bolt d, the adjustable notched locking-bar il '12, the-striker-,plate l, its adj ustable-striker m, and regulatingfscrews n n, as and for the purpose described.y

In testimony whereof I have aflixed iny signature infpresence of two witnesses.

GEORGE A. EAEKs.

the locking-bart in an unlocked position-that- 

